Firefox Support Forum

In Firefox 115.8.0esr on linux RHEL7, I am loading a local html page (using file:///...) that I created. Inside the html page, I have a tag "<object id="hiddenDataObj" data="abc.txt">" where abc.txt is a text file in the same directory as the html file. Using my default profile, the data is loaded and some downstream javascript runs as expected. When I use an alternate profile and try to load the exact same page, I get a javacscript error "Uncaught TypeError: hiddenDataObj.contentDocument is null." It is not null when I run my default profile.

I'm trying to figure out what setting in my profile is enabling/disabling the loading of the data so that I can change it. I've gone to about:preferences and scrolled through and it seems like all settings I see are the same between the two profiles.

Thanks for any help.

Before Firefox used to keep private tabs 'open and available' till you closed the page out, for iphones, ipads, etc. Now all my private tabs are closing out every time I close the app. Before there used to be a section in settings that would allow you to turn this feature on/off, however it's not in settings anymore. I wanted to know if there is another way around this. I want to be able to keep private tabs open when I close out Firefox on my phone and ipad.Before I would have all my tabs available jut like regular browsing but now its cleared out evey time. Is there anyway to fix and change this?

When opening a private window after the 127.0 update, now opens opens a new window on the far right. It is no longer connected to the FireFox browser. In about:config I have it set to False for browser.PrivateWindowSeperation.enabled. That worked in the past but doesn't seem to be working anymore.

Just today when I opened private browsing tab on my firefox it opened a new separate window and an icon appeared on the taskbar unlike before where the private window would be one with the firefox icon on the taskbar. I tried the fix of editing the config browser.privateWindowSeparation.enabled and turned it to false but still it did not work. I also disabled all my studies but it still is the same. I have attached several screenshots about the problem and solutions I tried.

Hi All,

This salesforce site is working in safari, chrome and edge but it is not working in the latest Firefox browser. It crashes after getting stuck for minutes. Is this technology not supported by Firefox?

https://newbalance--nbtu.sandbox.my.site.com/teamstore/

Hello,

I noticed something strange on my account under my password manager and want to make sure it is not a security issue.

Under my Password Manager, I noticed that a majority of my saved passwords (unless used recently) all have the last "used" date as April 5, 2024. These are on accounts that I do not access frequently and they all have the same "used" date.

Why would this be the case?

Thank you so much, Brianna

I am a long-time Firefox for Mac user and recently, browser APP all of a sudden is ignoring selected PRINT preferences. Two examples are: Printing one-sided when two-sided is selected, and printing in color when the default and selected preference is for a "Black and White Fast Draft". I use a MacMini M1 running Sonoma v14.5 and Firefox v 127.0 (64 bit). My printer is an HP OfficeJet Pro 8710 with up-to-date firmware. I have resorted to use of Chrome until I resolve this situation, though I prefer to use Firefox. In addition, while it may be a separate issue, I also found that the use of Firefox when using GMAIL developed a new issue at approximately the same time. Now, when clicking on the selection box for an individual email, Firefox often does not allow the box to be checked, but again with Chrome, it works just fine. Any help would be appreciated. Thank you.

This morning I saw that images were not downloading within my GMAIL messages. Believing that something was wrong with my connection, I decided to give both my computers a restart. This concerns my Windows 10 64-Bit, on which I had both Edge and Firefox opened, both with multi-tabs. In Firefox I had my Google account open with other tabs. After shutting down both computers I left my apartment. The Windows 10 restarted on its own; but both browsers lost their tabs even though I set each to reopen the previous session. With Edge and function keys I was able to restore my previous session; but not with Firefox. about:sessionrestore was not available. The Profile folder did not show a backup for these lost tabs. I hate hunting for them in History because I am working on multiple projects and don't have time for this wasteful activity, which is why I set Startup to Open Previous Windows And Tabs. What option did I miss?

Now, we have more wasted time. I reopened as many tabs as I remembered opened during the session I could not restore. Now, the only tabs that reopened since are the ones I opened that have posts about restoring sessions. The tabs I reopened are lost even though I checked off Open Previous Windows And Tabs. This browser is performing worse as of today for some reason I am not aware. What changed? From what I see here, there was no MS Windows update that might have occurred when I shut down and lost the tabs. Could I have disrupted the tabs by using the right hand, top corner "X" to shut out of Firefox?

This is getting more and more whacked up! It seems that every time I reopen a tab within the Library, it opens it in the same tab, overlaying the previous tab I opened.

A firefox support article told me to reinstall firefox from snap on ubuntu, without mentioning anything about the profile, settings, and bookmarks. Now everything is gone.

Is there any way to recover my local profile?

I don't think it was synced properly with my other devices

I have a site where I have a valid login and password. I can login in Edge and FF Private Window, but in FF I get the attached message. Coninued tries gets me locked out for 24 hours.

I have whitelisted the site. Cleared caches and cookies, etc.

What does this mean and how can I fix it?

Thanks!

The lag is very problematic to me, because I do most of my work using the browser. When the keyboard starts lagging I can only enter text using copy/paste with mouse (which works fine). The only way to solve it is to restart Firefox (which can result in lost work).

The lag, when it starts, is 10 seconds or more for each keystroke. It occurs about once every few days.

Ubuntu 22.04.4 LTS

126.0.1 (64-bit) Mozilla Firefox Snap For Ubuntu Canonical-002 - 1.0

I don't use Wayland.

Setting accessibility.force_disabled to 1 did NOT help.

Some lines from the top when this happened:

``` top - 20:21:22 up 2 days, 11:27, 1 user, load average: 0,36, 0,83, 1,02 Tasks: 270 total, 1 running, 268 sleeping, 0 stopped, 1 zombie %Cpu(s): 1,7 us, 0,3 sy, 0,0 ni, 98,0 id, 0,0 wa, 0,0 hi, 0,0 si, 0,0 st MiB Mem : 11776,5 total, 1221,4 free, 7160,2 used, 3394,9 buff/cache MiB Swap: 18432,0 total, 18154,1 free, 277,9 used. 3535,6 avail Mem

  VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND                                                               

6234092 3,1g 101052 S 1,0 26,7 217:04.66 /snap/firefox/4336/usr/lib/firefox/firefox -contentproc -childID 138 +

 20,8g 754008 235476 S   1,0   6,3 204:17.24 /snap/firefox/4336/usr/lib/firefox/firefox                            

7402104 518340 108992 S 0,0 4,3 18:16.64 /snap/firefox/4336/usr/lib/firefox/firefox -contentproc -childID 4 -i+ 1576384 372564 158532 S 0,0 3,1 3:45.49 /usr/lib/libreoffice/program/soffice.bin --calc file:///home/user/w+ 2913372 356592 100916 S 1,0 3,0 15:18.84 /snap/firefox/4336/usr/lib/firefox/firefox -contentproc -childID 278 + 2762568 304556 94852 S 0,3 2,5 0:50.35 /snap/firefox/4336/usr/lib/firefox/firefox -contentproc -childID 552 + 3155860 303900 58316 S 0,3 2,5 6:06.12 /home/user/.dropbox-dist/dropbox-lnx.x86_64-200.4.7134/dropbox 4997304 285560 102988 S 0,0 2,4 59:54.84 /usr/bin/gnome-shell 2796144 250836 94468 S 0,3 2,1 1:29.30 /snap/firefox/4336/usr/lib/firefox/firefox -contentproc -childID 469 + 2604896 243840 84184 S 0,0 2,0 0:43.95 /snap/firefox/4336/usr/lib/firefox/firefox -contentproc -childID 1 -i+ 2797868 217532 95100 S 0,0 1,8 2:41.74 /snap/firefox/4336/usr/lib/firefox/firefox -contentproc -childID 327 + 2610924 187876 92820 S 0,0 1,6 0:14.77 /snap/firefox/4336/usr/lib/firefox/firefox -contentproc -childID 577 + 2619764 171224 92892 S 0,0 1,4 0:17.94 /snap/firefox/4336/usr/lib/firefox/firefox -contentproc -childID 579 + 2514872 163516 93684 S 0,0 1,4 0:14.78 /snap/firefox/4336/usr/lib/firefox/firefox -contentproc -childID 591 + 2556276 160004 91440 S 0,0 1,3 0:04.57 /snap/firefox/4336/usr/lib/firefox/firefox -contentproc -childID 581 + ```

I've been dealing with this issue for a long time now, without finding any solution

On macOS, whenever I am using Bluetooth headphones (Sony XM4, Airpods Pro), videos will hang for a few seconds just as the video is starting. This happens again if I pause/unpause or if I seek forward/backward on a video. The video "spinning animation" will appear and it will take 2-3 seconds for the video to start. This happens immediately, even if I click pause/start fast (ie: this is not after some delay necessarily). Also, if I mute audio on the video, the issue does not manifest itself.

During the waiting, Firefox itself seem to be hanging: for instance if I click on an extension icon in the toolbar, nothing will happen until the video finally start playing and then the extension menu will open up

When using Google Meet or Zoom for instance, I sometimes have to wait up to 10 seconds or so before Bluetooth Audio/Microphone starts after I've joined a meeting.

The issue is not specific to these platforms: I experience the same issue on other platforms such as Facebook, dailymotion, vimeo, zoom. On Facebook, since videos start muted, I can see the videos start playing right away, and then if I unmute sound the video stops, and start again with sound after 3 seconds or so

The issue does NOT manifest itself when playing an audio-only stream: ex Soundcloud or local radio stations audio stream

Things I've tried and didn't help - Troubleshoot mode - Different Firefox profile - Different Firefox install - Restarting my system

This feels like Firefox/macOS is waiting for Bluetooth to activate, or something like that. I have a feeling this only happens for certain types of video/audio codecs but I am not sure how to validate that (ex: no issues on soundcloud, petron audio-only posts).

The problem is entirely non-existent when I'm using sound output that is not Bluetooth.

This does not happen with other browsers otherwise I wouldn't be posting here :)

macOS 14.5, M1 Macbook Pro

SLES 15.5 QU2 in Mozilla Firefox 115.8.0esr was not supporting window.close() even i added user_pref("dom.allow_scripts_to_close_windows", true); in user.js and prefs.js

Have used Firefox for decades and suddenly it is having problems. If I surf around and have a few tabs open, some of them might crash. Firefox tries to restore them and sometimes it works and sometimes they just crash again immediately. I can go to Amazon and the page won't load completely so I can't do anything. If I try and close Firefox it won't close, it is frozen. And often, pages just load very slowly even though my internet connection is strong. This just started about a month or so ago. I have refreshed Firefox, updated it, and checked the systems on my computer. All my internal diagnostics returned "no issues." So it has to be the program.

Hi folks,

I'd like to obtain some clarity on provenance aspects of Firefox released as a Flatpak.

I see in this article that one of the options is to use flatpak package: https://support.mozilla.org/en-US/kb/install-firefox-linux

Is this article produced / reviewed by mozilla? Is flatpak an officially trusted, backed by mozilla, means of installing firefox on a system?

On flathub one can observe the "Verified" seal which indicates that such package is developed and maintained by original package developers (in case Mozilla). One can also observe in multiple forums here and there that mozilla is the one that builds and maintain this package.

Though a seal is nice, and users opinions are ok, it would be good to have artifacts that would evidence better this relationship. Also, would be good to have this officially stated in mozilla's website, under "Download options and other languages" section, something like "you can also safely install firefox through the flatpak package available on flathub which is developed / maintained / signed by mozilla itself".

Or maybe all of this information is around and i am just not able to link it together.

Thanks

I cannot get the print button to work in my emails. I used to be able to close Firefox and re-open and then it would work, but today that did not work. I shut down my computer completely and still it does not work. I am attaching a snip of the screen showing the print button.

Hello, it seems that cycling through tabs in most recently used order is not working for me. I am running version 126.0.1 on Windows and I have the "Ctrl+Tab cycles through tabs in recently used order" option enabled on my settings page. I have only noticed this issue in the past week or so, and so I am wondering if this feature is broken in the most recent release and if there is anything I can do to get the feature to work again until the bug is fixed in a future version.